JPS5951199A - Fan device - Google Patents
Fan deviceInfo
- Publication number
- JPS5951199A JPS5951199A JP57159587A JP15958782A JPS5951199A JP S5951199 A JPS5951199 A JP S5951199A JP 57159587 A JP57159587 A JP 57159587A JP 15958782 A JP15958782 A JP 15958782A JP S5951199 A JPS5951199 A JP S5951199A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- fan
- deflector
- stall
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は例えばタービン発電機の回転子に取付けられた
通風用ファンと、そのファンの外周に対向して設けられ
た通風を曲げ案内する流害ディフレクタとを備えたファ
ン装置の改良に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a ventilation fan attached to the rotor of a turbine generator, for example, and a flow damage control device provided opposite to the outer periphery of the fan to bend and guide the ventilation. The present invention relates to an improvement in a fan device equipped with a deflector.
近年の省エネルギー、高効率化の技術動向を鑑みるに、
例えばタービン発電機の回転子に取イτ１けられた通風
用ファンの外周に対向してラッパ状に形成され、半径方
向内側に向って流れるガス冷媚を軸方向に曲げる機能、
あるいは逆に軸方向に向って流れるガス冷媒を半径方向
外側に曲げる機能を有するディフレクタのような流体デ
ィフレクタにおいては、形状の最適化（二よる風損の低
減は高効率化対策の一環として大切な要素である。特に
流体ディフレクタの軸方向部にファンが設けられる場合
は、適切な流体ディフレクタを用いなければ、ファンの
機能が十分に呆せなくなり、風損を増大してファン装置
の効率が低下し、場合によっては、流体の剥離によって
失速したり、まだ失速から進んでファンが破損するに到
ることもある。Considering recent technological trends in energy saving and high efficiency,
For example, it is formed in a trumpet shape opposite the outer periphery of a ventilation fan mounted on the rotor of a turbine generator, and has a function of bending the cooling gas flowing radially inward in the axial direction.
Conversely, for fluid deflectors such as those that have the function of bending the gas refrigerant flowing in the axial direction outward in the radial direction, optimization of the shape (reducing windage loss due to Especially when a fan is installed in the axial part of the fluid deflector, if a suitable fluid deflector is not used, the fan will not function properly, increasing windage loss and reducing the efficiency of the fan device. However, in some cases, the fan may stall due to fluid separation, or even progress from a stall to the point where the fan is damaged.
［発明の目的〕
本発明は０１コ休デイフレクタの流体摩擦損失を低減し
、流体の剥１’ａトを防ｉ・、することによつ−Ｃ１フ
ァンの失速や、その失速によるファンの破］ｉを防止１
−だファン装置を提供することを目的とする。[Object of the Invention] The present invention reduces the fluid friction loss of the 01 cooling deflector and prevents fluid separation, thereby preventing the stalling of the C1 fan and the failure of the fan due to the stalling. ] i prevent 1
- The purpose of the present invention is to provide a fan device.
本発明においては、ラッパ状に形成され、半径方向外側
］に向って流れる流体を軸方向に曲げる機能、あるいは
逆に軸方向に向って流れる流体を半径方向外側に曲げる
機能を有する流体ディフレクタの軸方向（１向いた部分
の内部にファンを回転自在に配設し、流体ディフレクタ
の半径方向に向いた面の外方に円筒状でかつ流体の出入
口を有するフレームラ冶スるファン装置において、フレ
ームの内径をＤ１ファンを装着したシャフトの外径を（
１、流体ディフレクタの半径方向に向いだ面から曲率面
に移る境界線とシャフト表面までの距離を１〕とした場
合（二、
０８≦□≦１
−ｄ
の関係を持たせることにより、流体摩擦損失に低減し、
流体の剥離を防止するものである。In the present invention, the shaft of a fluid deflector is formed in a trumpet shape and has a function of axially bending fluid flowing toward the outside in the radial direction, or conversely, a function of bending fluid flowing in the axial direction toward the outside in the radial direction. In a fan device in which a fan is rotatably disposed inside a portion facing in a direction (1), and a frame is arranged in a frame having a cylindrical shape and a fluid inlet/outlet outward from a surface facing in a radial direction of a fluid deflector, The inner diameter of the shaft with the D1 fan attached is the outer diameter of the shaft (
1. When the distance between the boundary line that transitions from the radially facing surface of the fluid deflector to the curvature surface and the shaft surface is 1] (2. By establishing the relationship 08≦□≦1 −d, the fluid friction reduce to loss,
This prevents fluid separation.
し発明の実施例〕
以下、本発明の一実施例について図面を参照して説明す
る。円筒状のフレーム（１）には流体の入口（ｌａ）
（流体の流れの向きが逆のときは出口となる）を半径方
向に開け、その流体の入口（１ａ）の端部を含むフレー
ム（１）内周に環状板からなる仕切板（２）を数句け、
その仕切板（２）の内周にラッパ状に形成された流体デ
ィフレクタ（３）の大きい方の開口部の半径方向平面の
外周を接合する。流体ディフレクタ（３）の中心部に回
転軸（４）を貫通させ、その回転１ＩＩｌｌ！（１）に
低周したファンボス（５）と、ファンボス（５）に設け
られたファン羽根（６）とからなる軸流ファン（７）を
流体ディフレクタ（３）の軸方向部（３ａ）内に回転自
在に設ける。そしＣ１この場合、流体ディフレクタ（３
）の半径方向平面と曲率を有する而との境界線（３ｂ）
と回転軸表面（４Ｓ）との距離りと、フレーム（１）の
内径りおよび回転軸（４）の外径ｄの関係を
、とする。Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The cylindrical frame (1) has a fluid inlet (la)
(When the direction of fluid flow is opposite, it becomes an outlet) is opened in the radial direction, and a partition plate (2) consisting of an annular plate is installed on the inner periphery of the frame (1) including the end of the fluid inlet (1a). Say a few words,
The outer circumference of the radial plane of the larger opening of the fluid deflector (3) formed in a trumpet shape is joined to the inner circumference of the partition plate (2). A rotating shaft (4) is passed through the center of the fluid deflector (3), and its rotation is 1IIll! An axial fan (7) consisting of a fan boss (5) with a low circumference in (1) and fan blades (6) provided on the fan boss (5) is connected to the axial part (3a) of the fluid deflector (3). Rotatably installed inside. Then C1 In this case, the fluid deflector (3
) and the boundary line between the radial plane and the curvature (3b)
The relationship between the distance between and the rotating shaft surface (4S), the inner diameter of the frame (1), and the outer diameter d of the rotating shaft (4) is as follows.
次に作用について説明する。Next, the effect will be explained.
流体はフレーム入口（ｌａ）から流入し、仕切板（２）
および流体ディフレクタ（３）に沿って流れ、軸流ファ
ン（力に到る。流体ディフレクタ（３）に沿って流れる
場合、（１０１）式の関係を保つ限り、流体はスムーズ
に流れ、流体摩擦損失を低減し、流体の剥離を防止する
。この関係は以下に述べる流体実験結果に基いたもので
ある。Fluid enters from the frame inlet (la) and passes through the partition plate (2).
and flows along the fluid deflector (3), reaching the axial fan (force).When flowing along the fluid deflector (3), as long as the relationship of equation (101) is maintained, the fluid flows smoothly and fluid friction loss This relationship is based on the fluid experiment results described below.
一般にブラントル斂がｌに近い流体においては、次の（
１０２）式に示すレイノルズアナロジ則が成立すること
が知られている。In general, in a fluid where Bruntl's radius is close to l, the following (
It is known that the Reynolds analogy law shown in equation 102) holds true.
又、σ−１の場合は
ここに、ｌぐ＋＋ニア；丸伝１コト係数ψ１：壁面摩擦
係数
σニブラントル数
ｕ３：粘性底層のすぐ外側の速度
Ｕ：主流の速度
この（１０２）式および（１０３）式から、熱伝達係数
Ｋ）Ｉの大きい個所が壁面摩擦係数ψ１も大きい点に留
意し゛〔、実験により各部温度上昇を求め、熱伝達係数
の評価により流体ディフレクタ（３）の最適形状を求め
たところ、
という結果を得だ。そして（ｌｏｔ）式の範囲の関係な
らば（ｔｏ４）式に準じた作用効果が得られることが分
った。In addition, in the case of σ-1, here is lg++near; Maruden 1 Koto coefficient ψ1: wall surface friction coefficient σ Nibrantl number u3: velocity just outside the viscous bottom layer U: velocity of the mainstream.This equation (102) and ( From equation 103), it should be noted that the wall friction coefficient ψ1 is also large at points where the heat transfer coefficient K)I is large. When I searched for it, I got the following result. It was also found that if the relationship is within the range of the (lot) formula, an effect similar to the (to4) formula can be obtained.
従って、流体ディフレクタ（３）の流体摩擦損失を低減
できるばかりでなく、ファン（７）の部分的剥離領域が
無くなる上、ファン効率が向上する。またファン（７）
の失速が起りに〈〈なって、例えはこのファン装置を回
転電機の冷却用ファン装置として利用すれば、冷却効果
を向上し、回転電機巻線の絶縁劣化も起りにくくなり、
回転電機の信頼性を向上する。Therefore, not only the fluid friction loss of the fluid deflector (3) can be reduced, but also the partial separation area of the fan (7) is eliminated, and the fan efficiency is improved. Also a fan (7)
For example, if this fan device is used as a cooling fan device for a rotating electric machine, the cooling effect will be improved and insulation deterioration of the rotating electric machine winding will be less likely to occur.
Improve the reliability of rotating electrical machines.
尚、本発明は上記し、かつ図面に示した実施例のみに限
定されるものではなく、例えば流体の流れを逆にしても
よい等その要旨を変更しない範囲で、種々変形して実施
できることは勿論である。It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with various modifications, for example, the flow of fluid may be reversed, without changing the gist of the invention. Of course.
し発明の効果〕
以上説明したように、本発明によれば、流体の流れをス
ムーズにし、流体摩擦損失を低減させ、ファン効率が向
上し、ファンの失速が起りにくくなり、失速によるファ
ンの破損を防止できる信頼性の高いファン装置を提供す
ることが出来る。[Effects of the Invention] As explained above, according to the present invention, fluid flow is smoothed, fluid friction loss is reduced, fan efficiency is improved, fan stall is less likely to occur, and fan damage due to stall is reduced. It is possible to provide a highly reliable fan device that can prevent this.
図面は本発明のファン装置の一実施例を示す縦断面図で
ある。
ｌ・・・フレーム ｌａ・・・流体出入口部３・
・・流体ディフレクタ
３ａ・・・流体ディフレクタ軸方向部The drawing is a longitudinal sectional view showing an embodiment of the fan device of the present invention. l... Frame la... Fluid inlet/outlet section 3.
...Fluid deflector 3a...Fluid deflector axial part
Claims (1)
を軸方向に曲げる機能、あるいは逆に軸方向に向って流
れる流体を半径方向外側に曲げるＰ４ζ能を有する流体
ディフレクタの軸方向に向いた部分の内部にファンを回
転自在に配設し、流体ディフレクタの半径方向に向いだ
面の外方に円筒状でかつ流体の出入口をイ１するフレー
ムを有するファン装置において、フレームの内径をＩ）
、ファンを・）、ｌ−ツ６Ｌだシャツ）・の外径をｄ１
流体テイフレクタの生徒方向に向いだ而から曲率面に移
る境界線とシーＶフト岩面外でのＩ＋’ｌＩ艮１ｆをＩ
・とじた場合シニ、Ｏ８≦ □−≦ １ １） −ｄ の関係を持たせたことを１１．￥−徴とするファン装置
。[Claims] A fluid deflector that is formed in a trumpet shape and has a function of bending fluid flowing radially inward in the axial direction, or conversely, a P4ζ function of bending fluid flowing axially outward in the radial direction. A fan device in which a fan is rotatably disposed inside a portion facing in the axial direction, and a frame having a cylindrical shape and having an inlet and an inlet for fluid outwardly from a surface facing in the radial direction of the fluid deflector, the frame I)
, the fan (), the outer diameter of the l-t (6L shirt)) is d1
The boundary line from the direction of the fluid deflector to the curvature surface and the I+'lI 1f outside the sea Vft rock surface are I
・In the case of binding, O8≦□−≦1 1) 11. Fan device with ¥- sign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159587A JPS5951199A (en) | 1982-09-16 | 1982-09-16 | Fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159587A JPS5951199A (en) | 1982-09-16 | 1982-09-16 | Fan device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5951199A true JPS5951199A (en) | 1984-03-24 |
| JPH0480240B2 JPH0480240B2 (en) | 1992-12-18 |
Family
ID=15696963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57159587A Granted JPS5951199A (en) | 1982-09-16 | 1982-09-16 | Fan device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5951199A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1389826A3 (en) * | 2002-08-13 | 2006-01-11 | General Electric Company | Generator gas shield and related method |
| CN109713831A (en) * | 2019-03-18 | 2019-05-03 | 扬州市华胜机电制造有限公司 | A kind of motor of high efficiency and heat radiation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5063508A (en) * | 1973-10-08 | 1975-05-30 | ||
| JPS5562900U (en) * | 1978-10-24 | 1980-04-28 |
-
1982
- 1982-09-16 JP JP57159587A patent/JPS5951199A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5063508A (en) * | 1973-10-08 | 1975-05-30 | ||
| JPS5562900U (en) * | 1978-10-24 | 1980-04-28 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1389826A3 (en) * | 2002-08-13 | 2006-01-11 | General Electric Company | Generator gas shield and related method |
| CN109713831A (en) * | 2019-03-18 | 2019-05-03 | 扬州市华胜机电制造有限公司 | A kind of motor of high efficiency and heat radiation |
| CN109713831B (en) * | 2019-03-18 | 2020-08-11 | 扬州市华胜机电制造有限公司 | High-efficient radiating motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0480240B2 (en) | 1992-12-18 |
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